Paul, everytime I go with my FRST for a spin, meets, etc etc everybody thinks its a XR2i. Just because the FRST are so bloody rare here in Portugal that even when I was getting it insured the insurance company didnt have the FRST on their "car list". Only had the XR2i or XR2i 16v
In the end got it insured as a Fiesta Turbo but it took a while.

Only know of 6 genuine Fiesta RS Turbo here in Portugal

ERST are also not often to be seen, but at least anyone into cars knows that they exist!